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1180 results about "Building industry" patented technology

Engine device and method for data integration and exchange of building information mode based on IFC (industry foundation classes) standards

The invention belongs to the technical field of information of the building industry, and provides an engine device and a method for data integration and exchange of building information mode based on IFC (industry foundation classes) standards, which are used for creating and applying a building information model (BIM). The method is based on a BIM database created on the basis of the IFC standards and a relational database, and BIM resolution in an IFC format, conversion of building information in non-IFC formats, extraction and integration of BIM submodels and storage, exchange and access control of BIM data are realized. The engine device comprises an IFC entity library, an IFC file resolver, an IFC geometric model converter, a Project-IFC converter, a BIM submodel integrator, a BIM submodel extractor, a data access controller, a BIM data storage device, a BIM data extractor, an IFC file generator and the like. The building information model data integration and exchange engine device and the method support conversion of BIM data in various formats, and BIM data integration and exchange oriented to various stages of the life cycle of a building or different applications can be realized. In addition, BIM data integration and exchange efficiency is effectively improved by the aid of data batch processing technology.
Owner:TSINGHUA UNIV

Regenerative concrete composite material and method for making same

The present invention discloses a regenerated concrete compound material, which is made of the following components according to weight ratio: 37-53 percent of regenerated aggregate prepared by the building waste residue, 14-30 percent of regenerated fine aggregate prepared by the building waste residue, 6-14 percent of industrial waste sand, 14-18 percent of common cement, 6-8 percent of water, additive and glue powder of waste tyre. The preparation method for the regenerated concrete is that: (1) the waste tyre is crushed and then is dipped in the coupling agent solution, and is to be dried; (2) the building waste residue is crushed, screened to obtain the regenerated coarse or fine aggregate; (3) the additive is added into the aggregate and the waste sand for mixing and blending evenly; (4) the regenerated aggregate, waste sand, cement, water and glue powder are milled evenly and then the regenerated concrete compound material can be obtained. The present invention can solve the problems that the building waste residue is difficult to be treated and the entironment is polluted and deteriorated greatly and so on. The building waste residue is to be used for replacing the natural aggregate that can decrease the consumptions to the natural aggregate in the building industry, solve the problems that the natural aggregates are increasingly lacked and the entironment is damaged by the exploitation of the sand stone. The present invention can protect the living environment for the human, guarantee the sustainable development for the society and accord to the requirement of the sustainable development.
Owner:云南华威废弃物资源化有限公司

Modularized biomimetic climbing robot

The invention discloses a biomimetic climbing robot which consists of five joint modules and two clamp holder modules. Each joint module has a rotational freedom and is driven by a direct current servo motor. The joint module has such two kinds as I type and T type, and joint rotating shafts are parallel to and perpendicular to the axial line of a joint connecting rod respectively. All modules areconnected successively by snap rings in a series mode, with the sequence as follows: clamp holder, I type joint, T type joint, T type joint, T type joint, I type joint, clamp holder. The rotating shafts of three T type joint modules are parallel to each other and are mutually perpendicular to the rotating shafts of the I type joint modules at both ends. The robot can climb on a rod and a tree andin a truss with equal steps in modes of inchworm, torsion and reversal and has operating function. The robot is characterized by small freedom, easy construction, simple structure and control, strongclimbing capability, good applicability to climbing objects and the like, thus being capable of being applied to high-lift operation in such fields as the agriculture, forestry and building industries.
Owner:SOUTH CHINA UNIV OF TECH

Preparation of chitosan-polyurethane ion complex elastomer material

The invention discloses a preparation method of chitosan-polyurethane ionic compound elastomeric material, which comprises the following steps: polyisocyanates reacts with polymer polylol and then reacts with diol or diamine, organic solvent and ionization reagent are added in the reactants to react with water for generating anionic waterborne polyurethane and further performs the ionic recombination reaction with cationic chitosan water solution to obtain the microemulsion or latex of chitosan-polyurethane ion composite, and finally the microemulsion or latex of chitosan-polyurethane ion composite is dried and solidified to obtain the chitosan-polyurethane ionic compoundelastomeric material. The chitosan-polyurethane ionic compoundelastomeric material has the advantages of good mechanical property, easy processing, good oil-water resistance property, good cohesive property with parent metal, controllable performance, good biocompatibility, biodegradable property, high biological activity, good blood contact property, good bacteriostatic property, good antibacterial property, and the like, can be applied in fields of mechanical industry, building industry, sport, medical treatment, and the like, and especially has wider purpose in aspects of life science research, medical materials and medical appliances.
Owner:NANJING UNIV

Fluorocarbon nanometer solar heat-insulation reflective paint, preparation method and using method thereof

The invention relates to a fluorocarbon nanometer solar heat-insulation reflective paint, a preparation method thereof and a using method thereof. The paint can be used for roofs and glass curtain walls of the building industry, offshore drilling platforms, oil tanks and petroleum pipelines of the petroleum industry, the surfaces of cars and trains of the transportation industry, hulls and decks of the ship-building industry, and the tanks and warships of the weapon and aerospace industry. The fluorocarbon nanometer solar heat-insulation reflective paint comprises a component A and a component B, wherein the component A comprises the following materials in percentage by weight: 40%-70% of fluorocarbon resin, 1%-10% of nanometer TiO2 concentrated slurry, 10%-30% of infrared-ray reflective pigment, 3%-10% of hollow micro beads, 1%-5% of auxiliaries and 10%-20% of organic solvent; and the component B is cross-linking agent. The preparation method for the fluorocarbon nanometer solar heat-insulation reflective paint comprises the following steps: 1) preparing, dispersing and grinding the materials of the component A in proportion until the fineness is lower than 30 microns; and 2) mixing and curing the component A and the component B to prepare the fluorocarbon nanometer solar heat-insulation reflective paint. The fluorocarbon nanometer solar heat-insulation reflective paint provided by the invention is suitable for normal-temperature drying or low-temperature baking and drying; moreover, a coating film formed by the paint has the characteristics such as high reflectivity, a good heat-insulation effect, high corrosion prevention, high weather resistance, high self-cleanness, low friction and the like.
Owner:大连佳秀百隆新材料股份有限公司

DC arc plasmatron and method of using the same

The present invention relates to a plasmatron structure for heating working gas in a DC arc discharge at the atmospheric or lowered pressures and can be used for different electronic, engineering, or vehicle-building industries and for medicine. An object of the invention is to provide improved effectiveness of process gas activation and increased completeness of plasma-chemical reactions. These objects are achieved in a DC arc plasmatron comprising a rod cathode, a nozzle anode having a body member and a through axial orifice, a power supply unit connected to both electrodes, and a gas system for feeding plasma-forming gas into inter-electrode space and supplying suitably selected technologic gas or gas mixture into the anode orifice through an internal opening communicating with said orifice and positioned between its inlet and outlet parts. In the plasmatron according to the invention, said opening is configured as a continuous circular axial gap between said parts of said anode orifice, while the size of said gap can be smaller or larger than the diameter of the inlet part of said anode orifice and the diameter of the outlet part of said anode orifice can also be smaller or larger than the inlet part of said anode orifice. In addition the inventive plasmatron can be successfully applied in vacuum conditions to extend lifetime of the activated process gas and to provide the clean treatment procedure.
Owner:IND ACADEMIC COOPERATION FOUND JEJU NAT UNIVERSTIY

Graphene-modified fluororesin coating material

The present invention discloses a graphene-modified fluororesin coating material, which comprises a film forming substance, commonly used additives, a solvent and graphene, wherein the amount of the added graphene is 0.001-10% of the mass of the fluororesin coating material, the fluororesin coating material is further added with the first additive and the second additive, and the addition amount of the first additive and the second additive is 0.1-3.5% of the mass of the fluororesin coating material. According to the present invention, the graphene is adopted to improve the strength of the fluororesin coating material, wherein the friction resistance, the adhesion of the fluororesin coating material and the substrate, the impact resistance and the thermal conductivity of the fluororesin coating material are significantly increased; and the fluororesin coating material has characteristics of low cost, less use amount, durable effect and simple and convenient use, and can be used in a plurality of fields of building industry, household non-stick cookware, marine life fouling resistance fields, high temperature resistance fields, national economy and national defense construction fields and the like.
Owner:NINGBO MORSH NEW MATERIALS

Lignin-epoxy resin composite material and preparation method thereof

InactiveCN102585531AEpoxySports facility
The invention discloses a lignin-epoxy resin composite material and a preparation method thereof, relates to a lignin-polymer composite material and a preparation method thereof, and aims to solve the conventional problem of low effective utilization rate of lignin. The lignin-epoxy resin composite material uses the lignin as a substrate; epoxy resin, a curing agent, a toughening agent, and the like are evenly blended with the lignin; and through the processes of pre-pressing, hot-pressing and curing molding, the lignin-based composite material is obtained. The lignin-epoxy resin composite material disclosed by the invention has the advantages of little water absorption, good mechanical performance, degradability, and the like, is suitable for manufacturing floor boards, wall protection boards, construction formworks, door-window profiles, fences, guardrails, louvers, roof boards, and the like in the construction industry, can be used for manufacturing inner decorative boards of automobile doors, seat backing boards, automobile roof lining, and the like in the automobile industry, and can also be used in the fields of the packaging and transportation industry, the furniture industry, office articles, sports facilities, and the like.
Owner:NORTHEAST FORESTRY UNIVERSITY

Electronic document management system for the construction industry

InactiveUS20050039115A1Efficient and straightforward creationAvoid dependenceForecastingOffice automationPaper documentDocument preparation
Embodiments of the invention include a document management system for the construction industry that organizes projects into accessible documents in an online computer network, such as the Internet, or computer readable media, such as an optical disk or other media. In one embodiment, the system includes a software utility for generating job-specific websites. Subcontractors, vendors, and the like, accessing the website can gather information useful in the submission of construction bids to the general contractor for all or a portion of the construction.
Owner:GORDON & WILLIAMS

Method for applying virtual reality technology to fabricated building industry

The invention relates to a method for applying a virtual reality technology to a fabricated building industry. The method comprises the steps of firstly, building 3D models of fabricated building members, and endowing the fabricated building members with attribute information; secondly, establishing fabrication rules of the fabricated building members through a virtual reality system; thirdly, performing splicing construction of the fabricated building members based on the fabrication rules of the fabricated building members in a VR scene by a designer through wearing a VR device to generate a fabricated building; and finally, performing rationality verification on the generated fabricated building, and if the verification succeeds, exporting a fabricated building member list and calculating total mass of the fabricated building based on member list information. According to the method, the immersive experience of a fabricated building design process is realized based on the VR technology; a design concept of the fabricated building is accurately passed on; the communication cost is reduced; and the communication effect is improved.
Owner:福州众衡时代信息科技有限公司

Geo-polymer recycled concrete and preparation method thereof

The invention belongs to the fields of civil engineering and environmental material engineering, and in particular relates to geo-polymer recycled concrete and a preparation method thereof. The geo-polymer recycled concrete is prepared from raw materials of recycled coarse aggregate, recycled fine aggregate, fly ash, slag powder, water, sodium silicate, sodium hydrate, naphthalene sulfonate formaldehyde condensation compound and calcium saccharate according to certain mixing proportion by adopting a special stirring process. The product of the geo-polymer recycled concrete not only has simple preparation process, but also has good working performance, mechanical property, durability and heat-insulating property. Simultaneously, the geo-polymer recycled concrete and the preparation method can efficiently use a great deal of waste concrete and two industrial byproducts of the fly ash and blast furnace slag, are significant in saving resources, saving energy sources and protecting the environment, and accord with the sustainable development strategy of the building industry. The product of the geo-polymer recycled concrete can be widely applicable to road engineering, structural engineering and other various civil engineering constructions.
Owner:TONGJI UNIV

Corrugated web beam connected to a top tube and bottom tube

A structural beam for use in the construction industry is described. The structural beam is comprised of a hollow top section and a hollow bottom section which are connected by one or two webs that may be corrugated. The hollow top and bottom sections may be rectangular. A corrugated web is also described having a trapezoidal shape. Also described is the combination of utilizing rectangular horizontal sections with a corrugated web to produce a structural beam that is light in weight, yet strong and fatigue resistant. Also described is a method of producing a structural beam having a corrugated web, a hollow top section, and a hollow bottom section.
Owner:BEHLEN ACQUISITION CO

Bamboo shoot skin plywood and production process thereof

Provided are bamboo shoot skin plywood and a production process of the bamboo shoot skin plywood. The bamboo shoot skin plywood adopts bamboo shoot skin of moso bamboo, phyllostachys parvifolia, dendrocalamus latiflorus, phyllostachys propinqua, phyllostachys viridi-glaucescens, overlord bamboo and others as raw materials, uses transparent polyester resin, and is manufactured through a panel material preparation and production process (including the steps of rinsing and hair removal, processing of a solution (70% of clean water, 27% of acetic acid and 3% of ethyl alcohol), water scrubbing, drying, flattening and mould pressing of a spliced picture), a base board production process (including the steps of rinsing and hair removal, drying, flattening, curtain weaving, spreading, gluing and hot pressing), and a third process (including the steps of splicing and spreading of a panel and the spliced picture, gluing, hot pressing of the panel on the surface of a base board, edge sawing, grading detection, and packaging and storage), can be used for the industry, the construction industry, furniture, floor boards, decoration, packaging and the like, and is multipurpose. The bamboo shoot skin plywood and the production process of the bamboo shoot skin plywood sufficiently reflect the concept of recycling waste materials, and solve many problems of existing plywood. The bamboo shoot skin plywood produced through the process is low in cost, high in strength, dampproof, waterproof, good in anti-mold property, not prone to deformation, low in carbon, environmentally friendly, durable, and capable of saving resources, and is a novel substitute product for the development of the plywood industry in our country.
Owner:CHIBI JIAXIANG BAMBOO SHOOT DEV

Production method for chloroprene rubber adhesive

The invention discloses a production method for a chloroprene rubber adhesive. The product produced by the production method is a high-performance adhesive. The adhesive is produced by using chloroprene rubber as a main body and using raw materials including styrene, silicon dioxide, magnesium oxide, zinc oxide, polyisocyanates, polyester resin, vinyl trisilane, antiaging agent D and the like and by a certain process. The product is mainly used in the building industry for adhering ethylene propylene diene monomer rubber waterproof coiled material, chlorinated polyethylene-rubber blended waterproof coiled material, chlorinated polyethylene waterproof coiled material, sulfurized rubber plastic waterproof coiled material, chlorinated polyethylene plastic floorings and calcium plastic plates with concrete, cement, asbestos boards, wood and other materials.
Owner:张耀华

Full-automatic intelligent wall skin shoveling machine

InactiveCN104153551AImprove efficiencyImprove the efficiency of shoveling the wallBuilding constructionsHydraulic cylinderAutomatic control
The invention belongs to the building industry and particularly relates to a full-automatic intelligent wall skin shoveling machine for house upholstery. A double-shaft inclination angle sensor is used for providing input signals for a control device to control a leveling oil cylinder to level a base. A working platform moving rack is matched with a gear shaft of a working platform motor set and a stepping motor to achieve first-level vertical working and moving of a working platform. A working hydraulic cylinder piston rod drives the working platform to move back and forth on a linear guide rail to achieve second-level vertical working and moving of the working platform. A ball screw set drives a cutter set to move at a designated shoveling depth, and therefore a certain shoveling thickness is achieved. A dust collector set collects shoveled dust through a dust washing draught fan. A walking wheel set drives the wall skin shoveling machine to move through a certain distance. The control device controls a cutter and the walking wheel set to shovel on a set plane route, and full-automatic control is achieved.
Owner:SHANDONG UNIV OF SCI & TECH +1

Intelligent construction management system based on IOT (Internet of Things)

The invention relates to an intelligent construction management system of a construction process, especially an intelligent construction management system in the construction process of the building industry based on the IOT (Internet of Things). An intelligent information collection platform is used for collecting the information of persons in an onsite construction region and the detection data and monitoring data of members, materials, safety and environment, and an intelligent information processing platform is used for processing the data. Different management platforms respond to user's requests, and display corresponding data, thereby enabling the information collection and processing operation on a site of a construction project to be simple, complete, accurate, scientific and intelligent.
Owner:上海点贸信息技术有限公司

Portable hand tool carrier harness

This invention relates to a novel design of portable hand drill carrier harness for use by workers in the construction industry. More specifically, the invention pertains to a cord powered or cordless drill carrier harness which combines a quick-draw drill carrying holster with a harness which fits about the torso of a cordless drill user. A drill carrier apparatus comprising: (a) a harness for fitting about the torso and over the shoulders of a person; (b) a portable tool carrier connected to the chest area of the harness; and (c) a mechanism which enables the elevation of the tool carrier to be adjusted relative to the elevation of the harness.
Owner:DORMAAR BRENT RONALD

Method for manufacturing high-quality bamboo plywood template by utilizing bamboo wood efficiently

The invention relates to a method for manufacturing a high-quality bamboo plywood template by utilizing bamboo wood efficiently. The method comprises the following steps of: cutting the bamboo wood into bamboo sections with the lengths of preset specifications; removing outer segments of the bamboo sections; slitting and removing inner segments of bamboo chips; breaking into bamboo splits radially; carbonizing the bamboo splits with superheated steam; drying the radial bamboo splits; weaving the radial bamboo splits into an integral bamboo curtain; impregnating the bamboo curtain into phenolic resin solution with solid content of 40 percent; drying the impregnated bamboo curtain at the low temperature, and preparing and machining impregnated paper; and assembling the impregnated paper and the bamboo curtain reasonably according to requirements, and performing hot-pressing, cooling, cutting edge, grading and inspecting to produce the high-quality bamboo plywood template meeting the requirement of quality. The high-quality bamboo plywood template prepared by the method can utilize the bamboo wood effectively, the utilization rate is up to over 90 percent, and the produced bamboo plywood templates with low cost and high quality can meet ever-growing requirements of the production in building industry.
Owner:福州市闽鑫艺达科技有限公司

Searching industrial component data, building industry networks, and generating and tracking design opportunities

Processes (and system) are disclosed for aggregation of product part number, associated description, and product parameter for a plurality of products from plurality of web sites. One embodiment includes identifying a product manufacturer web site and executing crawler to extract information from databases exposed on the manufacturer web site. Also disclosed is processes (and system) for tracking sales opportunities through a sales cycle. One embodiment includes receiving input relating to a sales opportunity from a first buyer having a first role, the input comprising requirements for the sales opportunity including predefined checkpoints and transmitting to the first buyer a request for updated information relating to the sales opportunity, the updated information corresponding to the predefined checkpoints.
Owner:BEGANTO

Mono-component room-temperature vulcanized silicone heat-insulation refractory sealant and preparation method thereof

The invention relates to preparation of a mono-component room-temperature vulcanized silicone heat-insulation refractory sealant. The mono-component room-temperature vulcanized silicone heat-insulation refractory sealant is prepared by the following steps of: sequentially adding 90-110 parts of alpha, omega-dihydroxy polysiloxane, 20-40 parts of methyl silicone oil, 20-50 parts of hollow glass microbeads, 30-50 parts of flame retardant, and other fillers to a vacuum stirrer, and stirring at vacuum degree of 0.06-0.08MPa and temperature of 100-150 DEG C for 4-6h; and then sequentially adding 1-5 parts of coupling agent, 1-5 parts of catalyst and 10-20 parts of crosslinking agent to the base materials in the stirrer, and stirring at vacuum degree of 0.06-0.08MPafor 40-100min. The prepared sealant has good flame retardancy, flame resistance and heat-insulation performance and greatly increased radiation resistance, and is an excellent sealing block material for nuclear power and building industries.
Owner:TIANYUAN HUAWEI GRP

Full-automatic intelligent wall building machine

The invention belongs to the building industry and particularly discloses a full-automatic intelligent wall building machine for indoor house wall building. A double-shaft inclination angle sensor provides input signals for a control device to control a leveling oil cylinder to level a base; a mortar conveying mechanism is used for achieving automatic mortar feeding; a building block conveying mechanism is used for achieving automatic building brick conveying; a mechanical clamping arm is used for clamping and placing building blocks to positions where the building blocks are to be placed; an arm rotating mechanism is used for selecting a certain angle to convert the directions of the building blocks; an arm stretching, contracting and walking mechanism is used for clamping the arm to move up and down and left and right; the control device is used for achieving full-automatic control over the intelligent wall building machine and setting the route for building and the building manner of each layer of building blocks by manual work through a touch screen (or an industrial control computer), the full-automatic intelligent wall building machine is controlled to conduct building according to the specified route and the certain building manner, and therefore wall building can be controlled in a full automatic mode.
Owner:SHANDONG UNIV OF SCI & TECH +1

Polyurethane panel

InactiveUS8668988B2Reduces fracturing and breakageImprove applicabilityCovering/liningsWallsEngineeringMelamine
Building panels are ubiquitous in the building industry and are used to form walls, doors or other partitions, either of a structural or non-structural nature. Polyurethane can be formed into a panel which is rigid and can function in the same manner as conventional panels formed from wood and other material. The panel is able to be cut, screwed, drilled, painted, laminated or veneered. While laminating or veneering polyurethane panels with, for example, melamine or plywood, improves strength and rigidity, this is at a cost to flexibility and, consequently, the applicability of panels. The invention defined herein therefore relates to an improved polyurethane panel which overcomes the disadvantages of those which have gone before. The panel of the invention finds particular use, although not exclusive use, in building and construction.
Owner:SCHOOTS NICOLA +1

Precast concrete wallboard and preparation method thereof

The invention relates to a precast concrete wallboard and a preparation method thereof. A wall body has a structural layer and a protection layer from inside to outside, wherein the structural layer is internally provided with a reinforcement cage, and a reinforcement fabric is arranged in the concrete of the protection layer; the protection layer is connected with the structural layer through a transverse connecting reinforcement connected to the reinforcement fabric; the left edge and the right edge of the protection layer protrude out of the structural layer; the lower edge of the protection layer downwards extends out of a protruded port; and the top of the protection layer upwards protrudes out of the structural layer; the upper edge of the protection layer has a dent corresponding to the protruded port of the adjacent precast concrete wallboard on the upper layer; and the two ends of a transverse bar of the reinforcement cage protrudes out of the left side surface and the right side surface of the structural layer of the wall body and form two rows of transverse steel ties bending inwards. The wallboard has the advantages that the construction process is simplified, the construction speed is accelerated, and the construction cost is reduced. Meanwhile, products precast by a factory have uniform specification and quality, and thus, the construction quality of a building structure can be guaranteed sufficiently. The precast concrete wallboard can be widely applied to construction of concrete steel buildings in building industry.
Owner:华筑(辽宁)建筑工程设计有限公司

E-commerce bid and project management system and method for the construction industry

An integrated electronic commerce (e-commerce) based construction industry bidding and project management system and methods, including document distribution, supply chain automation and on-line auctioning. In a pre-construction setting, the e-commerce based bidding and project management system and method provides for a user the means for participating and competing in the bidding and construction project management tasks using on-line computerized telecommunications technologies. The on-line system and methodologies help the participants to achieve cost efficiencies and performance enhancements that traditional prior art manual bidding and construction management systems and methods have not achieved. In a global system setting the present invention facilitates management of real estate, development, building and construction industries, including architecture, engineering and construction (AEC) project phases, including design, specification, research, bidding, financing, procurement, construction, and maintenance.
Owner:AUTODESK INC

Silane modified polyether sealant with excellent water soaking bonding performance and preparation method thereof

The invention discloses a silane modified polyether sealant with excellent water soaking bonding performance and a preparation method thereof, and relates to the field of a silane modified polyether sealant. The silane modified polyether sealant is prepared from the following ingredients in parts by mass: 100 parts of silane modified polyether, 50 to 100 parts of plasticizers, 100 to 150 parts of nanometer calcium carbonate, 50 to 100 parts of silicon micro powder, 2 to 10 parts of resin microspheres, 1 to 3 parts of vinyl trimethoxy silane, 0.5 to 3 parts of amino coupling agents, 0.1 to 1 part of organic tin catalysts and 0.3 to 3 parts of pigments. The prepared silane modified polyether sealant with excellent water soaking bonding performance has the advantages that the modulus is low; the stretch intensity reaches 0.2MPa; the elongation rate is 500 percent. The water-resistant bonding performance of the silane modified polyether sealant can be improved; after the water soaking aging, according to the stretch test result, the sealant layer cohesion damage occurs, the bonding performance is not damaged after the fixed stretching for 200 percent; the silane modified polyether sealant can be widely applied to waterproof sealing in building industry.
Owner:HUBEI HUITIAN NEW MATERIALS STOCK CO LTD +3

High polymer waterproof coating

The invention relates to a waterproof coating, in particular to a high polymer waterproof coating applied to building industry and a preparation method thereof. The high polymer waterproof coating comprises the following components in parts by weight: 3-20 parts of polyurethane, 0.1-5 parts of reactive polysiloxane compounds and 4-8 parts of polyvinyl alcohol, and further comprises the following components in parts by weight: 0.5-3 parts of high-melting-point polyethylene wax emulsion, 0.1-2 parts of tackifiers, 0.2-2 parts of nonionic surfactants and a defoaming agent. The high polymer waterproof coating, provided by the invention, has the characteristics of excellent high temperature resistance, low temperature resistance and shock chilling and shock heating change, good ductility and elongation at break in a wide temperature range, strong adhesive force, corrosion resistance, ageing resistance, safety and environmental friendliness, and is suitable for being coated on the surfaces of multiple substrates in building industry.
Owner:TIANCHANG JULONG TRAVEL PAINT

Construction personnel information and attendance management system

The invention relates to a construction personnel information and attendance management system. The construction personnel information and attendance management system is characterized by comprising a headquarter server, a server-side program, terminal devices and attendance terminals in various construction sites, wherein the headquarter server has a public network IP address; the server-side program is deployed in the headquarter server in a B / S architecture pattern; the attendance terminals push attendance recording data to the headquarter server through Internet; a manager can log in the server-side program via the browser of any one of terminal devices of various types to upload and manage the detailed information of contract workers; the system has the functions of multi-type and multi-centralized management, automatic analysis and collection of attendance records and multi-way graphic display. The construction personnel information and attendance management system is applicable to the personnel access road and the vehicle access roads of various construction sites, and is greatly convenient for control and attendance management on the personnel and vehicles.
Owner:SHANXI FIRST CONSTR GROUP

One-component room temperature vulcanizing silicone fireproof sealant and preparation method thereof

The invention relates to one-component room temperature vulcanizing silicone fireproof sealant. A preparation process comprises the following steps of: sequentially adding 90 to 110 weight parts of alpha, omega-dihydroxy polysiloxane, 20 to 40 weight parts of methyl silicone oil, 70 to 90 weight parts of filler and 30 to 50 weight parts of flame retardant into a vacuum kneading machine, and stirring at the temperature of between 100 and 150 DEG C under the vacuum degree of 0.06 to 0.08MPa for 2 to 4 hours to obtain a base material; and adding the base material into a vacuum high-speed stirrer, sequentially adding 1 to 5 weight parts of coupling agent, 1 to 5 weight parts of catalyst and 10 to 20 weight parts of cross-linking agent, and reacting under the vacuum degree of 0.06 to 0.08MPa at the rotating speed of 20 to 100rpm for 40 to 100 minutes with stirring to obtain the one-component room temperature vulcanizing silicone fireproof sealant. The prepared sealant has good flame retarding effect and high physicochemical property and is a novel high-performance fireproof material in nuclear power and building industries.
Owner:TIANYUAN HUAWEI GRP

Method for preparing high specific surface area nano alumina material

The invention relates to a method for preparing nano-alumina material with high specific surface area; the method mixes oil phase, surfactant, and cosurfactant in accordance with a certain volume ratio and adds aluminum salt solution, precipitant drop into the organic phase, then a microemulsion system is formed, a reaction is generated in a tiny water droplet by stirring, and later aluminum hydroxide precipitation is obtained. By washing, drying and calcining, nano-alumina is finally formed. The nano-alumina is a Gamma-alumina phase, with the average particular diameter of 5 to 100nm, the specific surface area of 200 to 500m <2> / g, the pore volume of 1.5 to 2.5cm <3> / g, and the average pore diameter of 5 to 60nm. The preparation method has the advantages of simple production process, low cost, strong repeatability, extremely high purity, uniformity and stability of obtained alumina product, can carry out batch production, can be applied to scientific research, petrochemical and building industries, and can also be used as standard material of the specific surface area.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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